SS Jeremiah O'Brien was an American merchant ship of the Second World War. The keel for this unit was laid in May 1943, and the launch took place in June of the same year, and in July 1943 the ship entered service. The total length of the vessel at the time of launching was 134.57 meters and a width of 17 meters. Full displacement reached 14,450 tons and maximum speed - 11 knots. The deck armament at the time of the launch consisted of a single 127 mm cannon, three 76 mm cannons and 8 20 mm Oerlikon cannons.
SS Jeremiah O'Brien was one of the Liberty ships. Vessels of this type were mass-built by shipyards located in the USA and Canada during World War II. Units of this type were cheap and easy to produce, they had a very simple structure, but also very spacious holds. It is worth adding that the first units of this type were built in approx. 240-250 days, but along with the improvement of production techniques, this time decreased to approx. 40 days! During the war, more than 2,700 Liberty ships were built, of which about 200 were lost as a result of the hostilities. SS Jeremiah O'Brien was built at the New England Shipbuilding Corporation in South Portland, Maine. He began his service in the Atlantic, where he made a total of four convoy voyages. It was also used as a transport ship during the Normandy invasion on June 6, 1944. Later, it was directed to the South Pacific and the Indian Ocean, where it served until the end of World War II. In 1946, SS Jeremiah O'Brien was transferred to the reserve. She is currently one of only two Liberty ships that function as a museum ship.